diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 71a831ae73e9..aa99bb61778c 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5347,24 +5347,26 @@ static void __intel_set_power_well(struct drm_device *dev, bool enable) static struct i915_power_well *hsw_pwr; /* Display audio driver power well request */ -void i915_request_power_well(void) +int i915_request_power_well(void) { - if (WARN_ON(!hsw_pwr)) - return; + if (!hsw_pwr) + return -ENODEV; spin_lock_irq(&hsw_pwr->lock); if (!hsw_pwr->count++ && !hsw_pwr->i915_request) __intel_set_power_well(hsw_pwr->device, true); spin_unlock_irq(&hsw_pwr->lock); + return 0; } EXPORT_SYMBOL_GPL(i915_request_power_well); /* Display audio driver power well release */ -void i915_release_power_well(void) +int i915_release_power_well(void) { - if (WARN_ON(!hsw_pwr)) - return; + if (!hsw_pwr) + return -ENODEV; + spin_lock_irq(&hsw_pwr->lock); WARN_ON(!hsw_pwr->count); @@ -5372,6 +5374,7 @@ void i915_release_power_well(void) !hsw_pwr->i915_request) __intel_set_power_well(hsw_pwr->device, false); spin_unlock_irq(&hsw_pwr->lock); + return 0; } EXPORT_SYMBOL_GPL(i915_release_power_well); |